Measuring the Galactic Distribution of Transiting Planets with WFIRST
Measuring the Galactic Distribution of Transiting Planets with WFIRST
复制标题
使用 WFIRST 测量凌日行星的银河分布
DOI：
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Penny
中科院分区：
文献类型：
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作者：
B. Montet;J. Yee;M. Penny
WFIRST微透镜使命将测量数百万颗恒星的精确光变曲线和相对光弛度，使其有可能描述所有沿着视线进入银河系凸起的短周期凌日行星的特征。这些光变曲线将使超过100，000个凌日行星的探测成为可能，这些行星的主恒星已经测量了距离。尽管这些行星中的大多数都无法被追踪，但通过WFIRST数据中检测到的次日食，可以直接确认数千颗热木星。此外，在WFIRST微透镜巡天期间，通过探测凌日时间的变化，可以确认一些小行星系统。最后，通过排除潜在的误报，更多的行星可能会得到验证。WFIRST凌日和微透镜的结合将提供行星系统架构的完整图像，从最短的周期到未绑定的行星，作为银河系距离的函数。
The WFIRST microlensing mission will measure precise light curves and relative parallaxes for millions of stars, giving it the potential to characterize short-period transiting planets all along the line of sight and into the galactic bulge. These light curves will enable the detection of more than 100,000 transiting planets whose host stars have measured distances. Although most of these planets cannot be followed up, several thousand hot Jupiters can be confirmed directly by detection of their secondary eclipses in the WFIRST data. Additionally, some systems of small planets may be confirmed by detecting transit timing variations over the duration of the WFIRST microlensing survey. Finally, many more planets may be validated by ruling out potential false positives. The combination of WFIRST transits and microlensing will provide a complete picture of planetary system architectures, from the very shortest periods to unbound planets, as a function of galactocentric distance.
影响因子：
6.5
作者：
Baraffe, Isabelle;Homeier, Derek;Chabrier, Gilles
通讯作者：
Chabrier, Gilles